Home / 3,670,290.90-5,505,436.35-1,990,674.90

Finding the Fourth Proportional to 3,670,290.90, 5,505,436.35 and 1,990,674.90

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Solution

The fourth proportional to 3,670,290.90, 5,505,436.35 and 1,990,674.90 is: 2,986,012.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,670,290.90 : 5,505,436.35 = 1,990,674.90 : x
  2. Step 2: Convert to fraction form
    3,670,290.90/5,505,436.35 = 1,990,674.90/x
  3. Step 3: Cross multiply
    3,670,290.90x = 5,505,436.35 × 1,990,674.90
  4. Step 4: Simplify right side
    3,670,290.90x = 10,959,533,955,492.61
  5. Step 5: Solve for x
    x = 10,959,533,955,492.61/3,670,290.90
  6. Step 6: Final answer
    x = 2,986,012.35

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.